Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5211159 | Exhaust hood with disposable filter assembly and filter-condition sensor | Leonard R. Lieblein, Raymond W. Rogers | 1993-05-18 |
| 5154161 | Air filter assembly for cooking apparatus | Raymond W. Rogers | 1992-10-13 |
| 5063906 | Air filter for cooking apparatus | Raymond W. Rogers | 1991-11-12 |